SYSTEMS
ELECTRICAL

SPARK PLUGS

Spark plugs ignite the fuel/air mixture inside gasoline engine cylinders by producing a high voltage spark. Diesel engines have similar glow plugs that are used just to start the combustion process.

• PROPER CARE
  • Inspecting Your Spark Plugs
  • Replacing Your Spark Plugs
  • Gapping Your Spark Plugs
• CORRECT OPERATION
• VARIATIONS
  • Spark Plug Types
  • Spark Plug Heat Range
• SAFETY TIPS
• LONGEVITY TIPS

SYSTEMS
LIGHTS & SWITCHES
SPARK PLUG WIRES